Up to 100 may already be infected in New Zealand Covid outbreak, modelling says

Authorities have warned more cases are expected, given the activity of those already diagnosed with the virus

Up to 100 New Zealanders may have already been infected with the Delta variant before the first positive community case was announced on Tuesday, modelling exercises have predicted.

Health officials are combing through the details of trans-Tasman arrivals to try to discover how the coronavirus that caused an outbreak in Sydney has led to a cluster of community cases in Auckland, with the nation on its second day of a snap lockdown.